Understanding Matter Assessment (25 - 26)

Which of the following is NOT a main idea of the particle model?

• Particles are always moving

• Particles are glued together

• All matter is made of tiny particles

• Particles have spaces between them

What happens to the speed of particles when heat is added?

• They move faster

• They move slower

• They stop moving

• They change shape

Tags

NGSS.MS-PS1-4

What is the main focus of the particle model of matter?

• Explaining the behavior of matter

• Describing colors of matter

• Measuring the weight of matter

• Counting the number of objects

Tags

NGSS.MS-PS1-4

What is a key idea about the movement of particles in matter?

• They are always moving

• They never move

• They only move in solids

• They only move in liquids

Tags

NGSS.MS-PS1-4

What is the process called when a solid changes to a liquid?

• Freezing

• Melting

• Condensation

• Evaporation

Tags

NGSS.MS-PS1-4

How do the particles in a solid move?

• Freely in all directions

• Slide past each other

• Vibrate back and forth in fixed positions

• Move rapidly and randomly

What happens to the particles in a liquid as it cools?

• They move faster

• They gain energy

• They lose energy and move more slowly

• They evaporate

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which process describes the change from a gas to a liquid?

• Melting

• Freezing

• Condensation

• Evaporation

Tags

NGSS.MS-PS1-4

What is true about the spaces between particles in a gas compared to a solid?

• They are smaller

• They are the same

• They are much larger

• There are no spaces

Which state of matter is mostly empty space?

• Solid

• Liquid

• Gas

• Plasma